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TDF8546JV Car Audio Amplifier——I2C Bus Controlled 4 x 45 W High Efficiency Amplifier

The TDF8546JV is a high-efficiency, versatile four-channel bridge-to-load (BTL) audio power amplifier from NXP designed for car audio systems. It supports I2C bus control and features high output power, low distortion and high efficiency for applications requiring precise control and high-quality audio output.

[Shenzhen Mingjiada Electronics Co., Ltd.] long term supplier of NXP (TDF8546JV) new generation of complementary four-channel Bridge-To-The-Load (BTL) audio power amplifiers, the following are the product details of TDF8546JV:

Basic Information:

Model: TDF8546JV (Automotive Audio Power Amplifier)

Package: DBS27P

Type: Class AB

Output type: 4-channel (Quad)

Maximum output power at different loads x number of channels: 64W x 4 @ 2 ohms, 45W x 4 @ 4 ohms, 40W x 4 @ 4 ohms

Voltage - Supply: 6V ~ 18V

Mounting Type: Through Hole

Package/Housing: 27-SIP, Formed Leads

TDF8546JV - Key Features:

Quad Outputs: The TDF8546JV supports four independent audio channels, each capable of driving one speaker.

I2C bus control: volume control, channel selection and diagnostic functions via I2C interface.

High output power: Each channel can output up to 45W (4Ω load) to meet high volume requirements.

High Efficiency: High-efficiency Class D amplifier design reduces heat generation and improves energy efficiency.

Low distortion: Low total harmonic distortion (THD) ensures pure sound quality.

Wide supply voltage range: The TDF8546JV supports supply voltages from 6V to 18V, adapting to different automotive electrical systems.

Thermal Protection: Built-in temperature protection to prevent overheating damage.

Short circuit protection: with output short circuit protection to enhance system reliability.

Low quiescent current: Low current consumption in standby mode saves energy.

TDF8546JV - Application Scenario:

Car audio system: such as car radio, CD player, navigation system.

Multimedia system: such as car entertainment system, rear seat entertainment system, etc.

Public broadcasting system: such as school buses, tourist buses, etc.

TDF8546JV - I2C bus control function:

Through the I2C bus, the following control functions can be achieved:

Volume control: adjust the volume of each channel.

Channel selection: selects the active audio channel.

Diagnostic function: read the status information of the amplifier, such as temperature, fault flags, etc.

Standby and mute control: enter standby or mute mode via I2C commands.

TDF8546JV - Typical Application Circuit:

Power supply filtering: add filtering capacitors near the VCC pin to reduce power supply noise.

Input coupling capacitors: Use coupling capacitors for each input channel to isolate the DC component.

Output Filtering: Use LC filters on the outputs to reduce electromagnetic interference (EMI).

Protection circuitry: Add fuses and transient voltage suppressors (TVS) to prevent overvoltage and overcurrent.

Summary

The TDF8546JV is a high-performance four-channel BTL audio power amplifier with I2C bus control for car audio and multimedia systems. Its high output power, low distortion, high efficiency and multiple protection functions make it ideal for car audio applications. Through the I2C interface, users can easily implement volume control, channel selection and system diagnosis, enhancing system flexibility and reliability.

Mingjiada Electronics has been supplying Amplifier TDF8546JV for a long time, for more information about TDF8546JV, please check our official website (www.hkmjd.com) or call us.

QQ：1668527835

Tel：13410018555

Email：chen13410018555@163.com